Ernie and Sigourney's roles in the new Ghostbusters film are currently unknown, however, Billy will play a ghost debunker, Dan will reportedly play a conspiracy-obsessed cab driver in a scene with Kristen Wiig, in which he will apparently drop the famous "I ain't afraid of no ghosts" line, and Annie will play a small role as a hotel receptionist in the Ghostbusters movie!

Paul Feig Feig's film, which wrapped last week after 17 weeks of shooting in and around Boston, stars Melissa McCarthy as Abby Yates, Kristen Wiig as Erin Gilbert, Leslie Jones as Patty Tolan and Kate McKinnon as Jillian Holtzmann. It hits theaters on Friday 22nd July 2016.

According to reports, the storyline of the new Ghostbusters movie will be: Erin and Abby write a book positing that ghosts are real, but it quickly winds up in the dollar bins. Flash forward a few years and Erin has a prestigious teaching gig at Columbia University — which is played by Emmanuel College because Boston is playing New York in the movie — and the book is resurrected online. Erin is laughed out of academia and winds up teaming up with Abby and Jillian — who is the Egon Spengler, Ph.D. character who has invented the PKE Meter for tracking ghosts.

The girls set up a Ghostbusting business, but sadly can't afford the firehouse headquarters the boys had in the original movies, played by Hook and Ladder 8. They instead wind up above a Chinese restaurant. (Those scenes were shot at the Kaze Shabu Shabu in Chinatown.) And their secretary, Kevin, is played by Chris Hemsworth, apparently gets to do a little busting himself, as his character was spotted sporting a Ghostbusters jumpsuit and riding a motorcycle during one scene.

Leslie Jones plays NYC tunnel worker Patty, who joins the band after she spots the villain, played by Neil Casey, unleashing spooks underground.

Ozzy Osbourne will also have a cameo in a heavy-metal concert scene shot at the Citi Wang Theatre.

And finally, Slimer, the green ghost from the original, will return — and his origins will be explained. Sadly, however, there is no Stay Puft Marshmallow Man in the climactic final battle, which was shot in the Financial District. But, there is rumors that there will be a ghost T-Rex!

Two years after the all-female reboot of the beloved 1980s franchise arrived, original star Dan Aykroyd is now promising that a true Ghostbusters 3, starring the three surviving OG ‘busters, is on its way. Many thought the death of Harold Ramis, who played Egon Spengler, in 2014 had put paid to a proper reunion, but Aykroyd’s comments suggest that we can look forward to him teaming up with Bill Murray and Ernie Hudson in the near future.

While speaking on The Big Interview With Dan Rather, the man fans know as Dr. Ray Stantz, the heart of the Ghostbusters agreed with Rather’s wording that he was talking about making a “full-blown third Ghostbusters,” with an unknown writer already currently working on the script. Obviously, Aykroyd wouldn’t let on to anything about story details, but he did tease that it’ll try and recapture what worked so well about the original films while giving it a “21st century” twist.

“I think we got a story that’s gonna work. It’s being written by a really goo…

Richard Shotwell/Invision/AP/REX/Shutterstock; Columbia Pictures (3); Everett Collection
If so, there's good news from the world of Gozer — there’s a new Ghostbusters movie in the works!

Entertainment Weekly has learned exclusively that Jason Reitman will direct and co-write an upcoming film set in the world that was saved decades previously by the proton pack-wearing working stiffs in the original 1984 movie, which was directed by his father, Ivan Reitman.

“I’ve always thought of myself as the first Ghostbusters fan, when I was a 6-year-old visiting the set. I wanted to make a movie for all the other fans,” Reitman says. “This is the next chapter in the original franchise. It is not a reboot. What happened in the ‘80s happened in the ‘80s, and this is set in the present day.”